(19)
(11) EP 2 006 574 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.01.2012 Bulletin 2012/01

(43) Date of publication A2:
24.12.2008 Bulletin 2008/52

(21) Application number: 08158096.1

(22) Date of filing: 12.06.2008
(51) International Patent Classification (IPC): 
F16G 1/28(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(30) Priority: 20.06.2007 JP 2007162198
17.03.2008 JP 2008067632
10.04.2008 JP 2008102447

(71) Applicant: MITSUBOSHI BELTING LTD.
Kobe, Hyogo (JP)

(72) Inventors:
  • Masakuni, Yoshida
    Kobe Hyogo (JP)
  • Hirofumi, Okabe
    Kobe Hyogo (JP)
  • Yasuyuki, Izu
    Kakogawa Hyogo (JP)

(74) Representative: Wablat, Wolfgang 
Patentanwalt Dr. Dr. W. Wablat Potsdamer Chaussee 48
14129 Berlin
14129 Berlin (DE)

   


(54) Toothed power transmission belt


(57) A power transmission belt (10) has a body (12) with a length (L), a width (W), an inside (18) and an outside (20). The body (12) has at least one load carrying member (22) embedded in rubber and extending in a lengthwise direction. The body (12) defines a plurality of teeth (28) spaced along the length of the belt on at least one of the inside and outside of the body. At least one of: (a) the at least one load carrying member (22) has an occupying rate (R) that is not less than 75%, with R = n x Dc/B x 100 where: n = number of load carrying members (22) aligned along the width of the body; Dc = diameter of load carrying member(s); and B = width of the body; and (b) the at least one load carrying member has a cross-sectional area taken transversely to the length of the body that is in a range of 1.10 to 1.70 mm2 per 1mm of belt width.







Search report